Chaplet for foundry use



March 23 1926. Y I 1,578,043

J. KOVANDA CHAPLET FOR FOUNDRY USE Filed Jan. 51 1925 [Z15 we F|e.5Will/Ill I55 PKG-Zr V Pic-1.4.

A'Womeus Patented Mar. 23, 1926.

UNITED STATES PATENT OFFICE.

CHAPLET FOR FOUNDRY USE.

Application fi ed January I '0 all whom it may concern:

Be it known that I, JOSEPH KovANnA, a citizen of United States, residingat W est Allis, in the county of Milwaukee and State of Wisconsin, haveinvented new and useful Improvements in Chaplets for Foundry Use, ofwhich the following is a specification.

This invention relates to improvements in chaplets for foundry purposesand has among its objects to provide a simple, novel and useful chapletwhich is particularly adaptable for supporting heavy and long cores.

Another object of the invention resides in the novel construction of theheads of the chaplet which ensures the core-supporting device becomingan inseparable part of the casting.

IVith these and other objects in view, my invention resides in the novelconstruction and combination of the parts and members shown in theaccompanying drawings, described in the following specifications, andparticularly pointed out in the appended claims.

Referring to the drawings Figure 1, is a plan view of my preferredchaplet construction Figure 2, is a vertical section of same taken online 22 of Figure 1;

Figure 3, is a plan View of a modified form of chaplet construction;and,

Figure 4, is a vertical section of same taken on line 4-4 of Figure 3;

Figures 5 and 6 show sections of two forms of corner construction takenon line mw of Figure 1.

Referring to the drawing and particularly Figures 1, 2, 5 and 6, thechaplet consists of an intermediate member 10 which may be formed ofeither round or rectangular cross section and which member terminates inintegral collar formations 11 of slightly in creased cross sectionalarea.

Integral with the collars 11 the chaplet. is formed with heads 12 ofsubstantially recangular shape having the corners 12 thereof cut atangle and arranged with depending or inwardly extending integralortions, one form of which is shown in Fig. 5 and indicated by numeral12 The 31, 1925. Serial No. 5,989.

inner face 12 of the corner portions 12 is formed at an angle to theouter face thereof and in a manner to allow the metal of the casting toform around and between the portions 12 whereby the heads 12 will beprevented from loosening and disengaging from the body of the castingbut will y reason of said inner faces 12 being inclined inwardly be heldmore positively in the wall of the casting.

In Figure 6, I show a modified integral corner portion 12 the inner face12 of which is formed inclined outwardly.

In the modification shown by Figures 3 and 4, the heads 13 aresubstantially rectangular with the corners 13 thereof slightly roundedand with the peripheral edge formed with an inward groove 13 of Vsection. It is readily apparent that the V groove will allow the metalof the casting to seat therein and thus insure the loosening ordisengagement of the head from the body of the casting formed aroundsame.

One of the heads 12 and 13 in the cases illustrated is formed with anintegral central extending stem 14 preferably of conical formation forinsertion and support of the chaplet in the sand mould.

Having described my improved chaplet, what I claim as new and desire tosecure by Letters Patent, is:

1. A chaplet comprising an intermediate portion of round cross sectionhaving substantially rectangular heads integral with the ends thereof,and a conical stem integral with one of said heads and in alignment withsaid intermediate portion, the corners of said heads being cut at anangle to the edges thereof and formed with integral depending orinwardly disposed extensions, whereby said extensions will afford alocking engagement of said heads with the wall of the casting to preventdisengagement therefron'i.

2. A chaplet as embodied in claim 1, and

including collars formed integrally with said heads and. saidintern'lediate portion, said collers having a cross sectional areaintermediate the area of said headand the cross sectional area of saidportion.

In witness whereof I afiix my signature. JOSEPH KOVANDA.

